package com.seu.me.thread.day1.sync006;

/**
 * 使用synchronized代码块加锁,比较灵活
 *
 * @author liangfeihu
 */
public class ObjectLock {

    public void method1() {
        // 对象锁
        synchronized (this) {
            try {
                System.out.println("do method1..");
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public void method2() {
        // 类锁
        synchronized (ObjectLock.class) {
            try {
                System.out.println("do method2..");
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    private Object lock = new Object();

    public void method3() {
        // 任何对象锁
        synchronized (lock) {
            try {
                System.out.println("do method3..");
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        final ObjectLock objLock = new ObjectLock();

        Thread t1 = new Thread(new Runnable() {
            @Override
            public void run() {
                objLock.method1();
            }
        });

        Thread t2 = new Thread(new Runnable() {
            @Override
            public void run() {
                objLock.method2();
            }
        });

        Thread t3 = new Thread(new Runnable() {
            @Override
            public void run() {
                objLock.method3();
            }
        });

        t1.start();
        t2.start();
        t3.start();

    }

}
